Update the "Running a Bridge" section of the website

Tom Ritter reported that the information at the bottom of https://www.torproject.org/docs/bridges.html.en#RunningABridge on running a Bridge relay is very out-of-date. We should probably:

  1. Move it to a separate page, because it's intended for a different audience than the rest of the page.

  2. Explain that operators should be running Tor>=0.2.5 if they want to offer pluggable transports.

  3. Update it to explain the minimum requirements for running an obfs4proxy bridge, and give an example torrc like:

ORPort 1.1.1.1:62419 ORAddress [2001::f00]:62420 ExtORPort auto RunAsDaemon 1 ExitPolicy reject :

BridgeRelay 1 ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy ServerTransportListenAddr 1.1.1.1:80 ServerTransportPlugin obfs3 exec /usr/bin/obfs4proxy ServerTransportListenAddr 1.1.1.1:443

(Assuming 1PFH8NPWu2g6TdRQsirTPGpbnPBhkzQMvM is still noisetor's BTC

donation address. See https://oniontip.com/#adding-relay)

ContactInfo Bridge-Operator admin@tor.noisebridge.net 1PFH8NPWu2g6TdRQsirTPGpbnPBhkzQMvM Nickname noisebridgeliteraly MyFamily 1A835E3663068222F28F7C5AF3216F4B27B50B57,E93F05C9A7112544A2F132CBB7F6701877140F2A,3591E0E966309AD335BE62FF694E8A898F97A6C9,D42EE35F9B62769E782DEA2FC6358ABFAFE7DB66,$C6F6B70AD9115C65B618B0AF3FD10B0432626CA9

CellStatistics 1 DirReqStatistics 1 EntryStatistics 1 ConnDirectionStatistics 1 ExtraInfoStatistics 1


 4) Explain how people can get/construct their bridge lines in order to test their bridge.